pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-59921-Knit_the_Pocky.ps) >>/Users/jc/w/tmp/Tune-59921-get.log 2>&1" returned status 256
http://tunearch.org/wiki/Knit_the_Pocky

Error exit status 256; here are some files to check:

[P=get.cgi V=1/1 B=0 scale=0.60 512x512 PNG]
filesizedescription
Tune-59921-Knit_the_Pocky.abc 254 ABC music file with the extracted tune(s)
Tune-59921-Knit_the_Pocky.ps 30901 PostScript
Tune-59921-Knit_the_Pocky.txt 254 Plain-text file with the extracted tune(s)
Tune-59921-get.log 4110 Log file, useful mostly for debugging
These files should be available for 24 hours.